//C14:14.2:manybook.c -- many book info.
#include <stdio.h>
#define MAXTITL  40
#define MAXAUTL  40
#define MAXBKS   100

struct book
{
    char title[MAXTITL];
    char author[MAXAUTL];
    float value;
};

int main(void)
{
    struct book library[MAXBKS];
    int count = 0;
    int index;

    printf("Please enter the book title.\n");
    printf("Press [enter] at the start of a line to stop.\n");
    while (count < MAXBKS && gets(library[count].title) != NULL
                && library[count].title[0] != '\0')
    {
        printf("Now enter the author.\n");
        gets(library[count].author);
        printf("Now enter the value.\n");
        scanf("%f", &library[count++].value);
        while (getchar() != '\n')
        {
            continue;
        }

        if(count < MAXBKS)
        {
            printf("Enter the next title.\n");
        }
    }

    if(count > 0)
    {
        printf("Here is the list of your books: \n");
        for (index = 0; index < count; index++)
        {
            printf("%s by %s: %.2f\n", library[index].title,
                    library[index].author, library[index].value);
        }
    }
    else
    {
        printf("No books?Too bad.\n");
    }
}
